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![MacleanRico Avatar](https://lunarcrush.com/gi/w:24/cr:twitter::1748070040010895360.png) Richard MacLean [@MacleanRico](/creator/twitter/MacleanRico) on x XXX followers
Created: 2025-07-21 20:36:30 UTC

“Giant Black Box”
xAI’s Grok X likely runs on an expanded version of the Colossus supercomputer, which trained Grok X with XXXXXXX NVIDIA Hopper GPUs (*Web:13,24*). No direct cost for Grok 4’s hub is public, but we can estimate based on industry data and xAI’s trajectory.


XX engagements

![Engagements Line Chart](https://lunarcrush.com/gi/w:600/p:tweet::1947395280296656980/c:line.svg)

**Related Topics**
[colossus](/topic/colossus)
[grok 4](/topic/grok-4)
[$nvda](/topic/$nvda)
[stocks technology](/topic/stocks-technology)

[Post Link](https://x.com/MacleanRico/status/1947395280296656980)